Vocabulary
Angles
Triangles
Theorems & Post.
Picture This
100
a three sided polygon
What is a triangle
100
If a triangle's side lengths are 6 inches, 3 inches, 6 inches, then this is a...
What is an isosceles triangle?
100
3 congruent sides
What is an equilateral triangle
100
if a triangle is equilateral then
What is it is equiangular
100
Find an isosceles triangle.
What is \triangleKLN ?
200
has three acute angles
What is an acute triangle
200
one angle = 120, another = 20 (for triangle) the remaining angle = ?
What is 40
200
no congruent sides
What is a scalene triangle
200
Name the theorem: If two sides of a triangle are congruent, then the angles opposite them are congruent
What is the Base Angles Theorem?
200
Find a right triangle.
What is \triangleCED ?
300
side opposite the right angle
What is the hypotenuse
300
the sum of the non-adjacent interior angles
What is the exterior angle
300
the sum of the interior angles of a triangle
What is 180
300
The acute angles of a right triangle are...
What is complementary?
300
Solve for x
x=5
400
A segment from a vertex of a triangle to the midpoint of its opposite side
What is a median?
400
Angles = 2x, right angle and exterior angle = 8x, the exterior angle = ?
What is 120
400
the side of a right triangle (not the hypotenuse)
What is a leg
400
The sum of the lengths of any two sides of a triangle...
is greater than the length of the third side
400
Solve for x
x = 6
500
The point where the medians of a triangle intersect
What is a centroid?
500
Interior angles = 45, 5x; exterior angle = 9x + 9 the exterior angle = ?
What is 90
500
A right triangle has leg lengths 40 and 30. Find the hypotenuse.
50
500
A point that is two thirds of the distance from each vertex to the midpoint of the opposite side
What is a centroid?
500
In the below diagram, P is the centroid for
\triangleABC.
The segment CF measures 6 inches. Set up an equation to find x. Do not solve.
2x + x = 6 or 3x = 6